Maximum permissible dose(mpd)
[化] 最大容许剂量
🧩 词语组成解析
🗣️ 情景例句
saying he was going to the railroad station
说他要去火车站
The leopard cannot change its spots.
江山易改，本性难移。
which I found most helpful on the cross-country journey, but which I did not think I should need on the last stage.
在乡间行车途中，我觉得它非常有用，但快到家了，我倒觉得它没什么用了。